Epson EL 486UC - Manual (Page 91)

Removing a Hard Disk Drive From the Internal
Drive Bay
To remove a hard disk drive, reverse the installation steps
outlined above. Then disconnect the hard disk drive ribbon
cable and the power supply cable from the back of the drive.
When you disconnect the cables, grasp the connectors and pull
them straight out so you do not bend the pins; do not pull on
the cables. Use the screws to again secure the hard disk drive
mounting bracket to the base of the computer.
Installing and Removing Drives 5-13